Same here, so far I haven’t had the problem again, I’m going to mark this as solved. I’ll have to “un-solve” it if I get the same probs. happening again, or create a new post, but so far, I believe that disabling hardware accel. was the key.
Thanks WhiteNoise.
Edit: Oops, I thought there would be a “Solved” checkbox for me to tick, but I see none, I guess WhiteNoise, being the Moderator, must have some way to set this thread as/to “Solved”.